Title

Evaluation of microleakage across different post-core systems in the endodontic-periodontal interface

Authors

Megha Chethan^1,*, Mohammed Saleem², Jeevan Shetty³, Anjana Yogesh³, Megharaj Doddagoudar² & N.R. Dedeepya²

Affiliation

¹Department of Conservative Dentistry and Endodontics, KGF College of Dental Sciences, KOLAR, Karnataka 563115, India; ²Department of Prosthodontics & Crown & Bridge, KGF College of Dental Sciences, KGF College of Dental Sciences, KOLAR, Karnataka 563115, India; ³Department of Periodontics and Implantology, KGF College of Dental Sciences, KOLAR, Karnataka 563115, India; *Corresponding author

Email

Megha Chethan - E-mail: meghachethan@yahoo.co.in
Mohammed Saleem - E-mail: drcmsaleem@gmail.com
Jeevan Shetty - E-mail: drjpshetty@yahoo.co.in
Anjana Yogesh - E-mail: anjuyogesh06@gmail.com
Megharaj Doddagoudar - E-mail: meghss2016@gmail.com
N.R. Dedeepya - E-mail: dedeepya.nr@gmail.com

Article Type

Research Article

Date

Received November 15, 2025; Revised December 15, 2025; Accepted December 15, 2025, Published December 15, 2025

Abstract

The effect of different post and core systems on microleakage at the endodontic-periodontal interface (EPI) remains unclear, despite its potential impact on secondary endodontic and periodontal complications. Hence, 90 extracted human single-rooted premolars were randomly assigned to three groups (n=30): Group FRC (FRC post + composite core), Group CG (Cast gold post-core) and Group TI (Titanium post + composite core). Following standardized endodontic treatment, post spaces were prepared and posts were cemented using dual-cure resin cement. Cores were built accordingly. Teeth were subjected to thermocycling (10,000 cycles, 5°C-55°C) and cyclic loading (100,000 cycles, 50N). Microleakage at the EPI was assessed using a fluid filtration method under constant pressure (20 kPa) for 10 minutes, quantifying the fluid volume (μL) traversing the interface. Within the limitations of this in vitro study, prefabricated FRC posts combined with composite cores demonstrated superior sealing ability at the EPI compared to cast gold and prefabricated titanium post systems under simulated functional conditions. This suggests FRC systems may offer a clinical advantage in minimizing microleakage and potentially reducing the risk of secondary endodontic or periodontal complications.

Keywords

Microleakage, post and core systems, endodontic-periodontal interface

Citation

Chethan et al. Bioinformation 21(12): 4548-4552 (2025)

Edited by

Vini Mehta

ISSN

0973-2063

Publisher

Biomedical Informatics

License

This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.